Steve Heistand <steve at heistand.org> says:
> any journaled filesystem is easy to fsck, its the rebuilding a drive
> that takes a while these days. 20 drives would take a while to init
> and or rebuild if you had to. not like days of course but unless you
> crank up the cpu/bandwidth limits way up it would be 10+ hours.
Building, yes; said 6.6TB/16 takes 4-6 hours, as mdadm (still!)
doesn't use more than one core. Reading a new drive after a hardware
failure (or rebuilding the array after a crash) nowadays only takes a
few seconds, though, thanks to internal bitmaps.
--
Frontend/backend: P4 3.0GHz, 1.5TB software RAID 5 array
Backend: Quad-core Xeon 1.6GHz, 6.6TB sw RAID 6
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